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Description: For a long time we’ve had small 7-segment displays and huge 7-segment displays, but now we finally have something in between. These 20mm 4-digit 7-segment displays are big enough to see from a distance but not so big that you’d have trouble finding an enclosure for them.

These common-cathode displays feature 4 x 7-segment digits and one decimal point per digit. The LEDs have a forward voltage of 2.3VDC and a max forward current of 30mA.

Dimensions: 71.6 x 25.7mm

Documents:

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Customer Comments

  • I wrote a library for this. The repo also includes a schema how to connect this display.

    see https://github.com/renes/fourDigitLCDDisplay

  • I think I may have burned out a few of my segments trying to figure out what was what, but the link below goes to a table that I think shows how all these pins work. (No guarantee or affiliation, provided as-is, and good luck.)

    https://dl.dropboxusercontent.com/u/10427523/MAPPING.pdf

    http://pastebin.com/yXKAnSFT

  • I bought two of these, and the pin out is different on each of them and neither match the datasheet or the last two I bought (which were the same and to my recollection to the datasheet).

  • These should be called 0.8 inch (or 20mm) tall displays. Industry standard to select the actual lit digit dimension as the key indicator of size not the plastic encasement. The spec sheet doesn’t indicate wether the intensity (mcd) is per segment or digit, I don’t read chinese, sorry.

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